Free Shipping Offers are for Standard Ground Delivery service and are only valid for shipping addresses within the 48 Contiguous United States. Truck freight and oversize charges still apply unless otherwise notes and can only be shipped to the lower 48 States.Same Day Shipping (on most parts) if you order by 5PM EST on a business day. We ship via UPS Ground and/or USPS to all locations in the Continental 48 States.

AmericanMuscle also offers Free Freight Handling to locations with loading docks in the Continental 48 States. Freight shipments going to a residential address will require a $75 residential handling fee.

Product Resources

Review & Installation Video

Review & Install Video

For Superb Performance and Handling. With a set of BMR Coupe Lowering Springs installed on your 1979-2004 Mustang, you can unleash your untapped driving potential. That's because these Lowering Springs are engineered with street performance enthusiasts in mind. These Springs were designed to lower your Pony to an optimal level to reduce squatting while accelerating, body roll while cornering, and extreme nose diving when hard braking. With these Springs on your Mustang, you will experience better handling while maintaining an overall smooth and comfortable ride.

Optimum Mustang Stance. These BMR lowering springs not only optimize your Mustang's stance for improved performance, they also improve your Mustang's appearance. These lowering springs are designed to lower your ride height approximately 1.0" up front and 1.0" in the rear to eliminate that unsightly tire to fender gap. This makes your Pony look sleeker and more aggressive.

Superior Construction. Designed and manufactured in the USA, these BMR Lowering Springs are CNC cold wound from chrome silicon high-tensile spring wire. To guarantee that their springs will not sag over time, BMR fully compresses every spring twice to permanently set the spring. To eliminate the stresses induced during the winding process BMR springs are stress-relieved at 750 degrees F. Shot-peening is then used to eliminate any residual surface stresses. As the final step every spring is compressed and tested allowing BMR to offer a Lifetime Warranty against spring sag.

Linear Design. Linear springs (also known as standard rate springs) are engineered with a constant spring rate that stays the same as the spring compresses. This linear rate of compression allows for optimum traction and a more predictable handling feel at both low and high speeds. Linear springs will have a slightly rougher ride when compared to progressive springs. Linear rate springs are a popular choice for track and road course driven Mustangs.

Clears Stock and Aftermarket Wheels & Tires. These lowering springs were engineered to be compatible with your stock size wheels and tires, as well as AmericanMuscle’s pre-configured wheel and tire combo kits (specific to your generation), to assure proper clearance with no rubbing issues.

Professional Installation Recommended. Seeing that a spring compressor is required for installation of these Coil Springs, AmericanMuscle recommends professional installation. With the proper tools, installation can be completed in about three hours. Please note that an alignment is highly recommended after installation.

Lifetime Sag Warranty. BMR Suspension covers their lowering springs with a lifetime warranty against spring sag. Some exclusions may apply, please see manufacturer's warranty for details.

For the BMR Lowering Springs, the price will vary depending on if you choose the rear set only or the front set only. Now if you choose the full set (both front and rear), that will generally be higher in price.

3 More Questions

The BMR Lowering Springs are engineered to be compatible with stock size wheels and tires, as well as AmericanMuscle’s pre-configured wheel and tire combo kits (specific to your generation), to assure proper clearance with no rubbing issues. For all other wheel and tire setups, fitment is not guaranteed.

The BMR Lowering Springs can be used in a convertible, however they will cause the car to sit lower than advertised due to the convertible's added weight. This may have a small impact on handling as well.

I purchased these springs as I wanted no more that a one inch drop due to the type of back rural roads I like to drive. The looks of the car are improved as well as the handling yet I can still clear all of the patches, potholes and bumps I occasionally run across. The ride for the most part is great though on certain types of blacktop it seems slightly harsher than expected. I installed a set of pirelli cinturato p7 tires at the same time and that may be the problem and the car is butter smooth in the interstates. All and all a great improvement on a budget. I really don't know how long it took to install as I replaced EVERYTHING under the car at the same time. I might note that I replaced spring isolators and still had the one inch drop

about time someone sold rear springs only. great deal for those of us who already converted the front to coil overs. rode great but did not lower my coupe at all . ended up cutting a full coil off to get to where i wanted

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12, 24 or 36 Month Extended Limited Warranty

Replace or refund the Cost of the Covered Part

No Deductibles Required

Notification of Enrollment within 24 Hours

Extended Warranty. AmericanMuscle/Turn5 Inc. is proud to offer an optional 12 month extended limited warranty to our customers that purchase an eligible product. The program administrator will replace or refund the cost of the covered part of a period of 12 months after the manufacturers warranty elapses, or from the date of purchase if the manufacturer does not offer a warranty.

Coverage. A Covered Part has failed when it can no longer perform the function for which it was originally designed solely because of its condition and not because of the action or inaction of any non-covered parts. The benefits available under this Limited Warranty are strictly provided to you for the replacement of the Covered Part(s) which fails due to a defect.

Notification Sent Via Email. You will receive notification of your enrollment in the extended product warranty program via email within 24 hours of placing your order. Please save this email for possible future reference.

No Deductibles Required. There are no deductibles required for use of this extended product warranty. If your covered part fails whtin the extended warranty time from, simply call the program administrator at 1-844-870-4881 for instructions before any repairs or replacements have begun. Additional contact details and instructions will be included in your confirmation email.

Meet Our Team

My life has always involved cars. My Dad drag raced up until the time I was born, and my Mom spent lots of time at the local dragstrips while she was pregnant with me. Yes, the sound of high compression V8’s and the smell of tire smoke must have had an effect on me.
I spent countless hours as a chi...

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